Tanauan, officially the City of Tanauan (Filipino: Lungsod ng Tanauan), is a first class city in the province of Batangas, Philippines. According to the latest census, it has a population of 152,393 inhabitants in 30, 354 households. It was incorporated as a city under Republic Act No. 9005, signed on February 2, 2001, and ratified on March 10, 2001.With the continuous expansion of Metro Manila, the city is now part of Manila's conurbation which reaches Lipa City in its southernmost part.